gcc/ChangeLog:

2019-05-06  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	PR target/89424
	* config/rs6000/rs6000.c (rs6000_expand_vector_extract): Add
	handling of V1TImode.

gcc/testsuite/ChangeLog:

2019-05-06  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	PR target/89424
	* gcc.target/powerpc/pr89424-0.c: New test.
	* gcc.target/powerpc/vsx-builtin-13a.c: Define macro PR89424 to
	enable testing of newly patched capability.
	* gcc.target/powerpc/vsx-builtin-13b.c: Likewise.
	* gcc.target/powerpc/vsx-builtin-20a.c: Likewise.
	* gcc.target/powerpc/vsx-builtin-20b.c: Likewise.

From-SVN: r270918

	* pt.c (tsubst_copy_and_build): Use a dedicated variable for the last
	element in the vector.

	* g++.dg/cpp1y/lambda-generic-90265.C: New test.

From-SVN: r270917

	PR target/89221
	* config.gcc (i[34567]86-*-*, x86_64-*-*): Move tests for enable_cld
	and enable_frame_pointer ...
	* configure.ac: ... here.  Update help strings for
	--enable-frame-pointer.
	* configure: Regenerate.
	* config/i386/i386-options.c (ix86_option_override_internal): Remove
	USE_X86_64_FRAME_POINTER define, use USE_IX86_FRAME_POINTER instead.
	* config/i386/sol2.h (USE_IX86_FRAME_POINTER): Remove.
	(USE_X86_64_FRAME_POINTER): Ditto.

From-SVN: r270914

2019-05-06  Martin Liska  <mliska@suse.cz>

	* config.gcc: Append to target_gtfiles and fix indentation.

From-SVN: r270913

2019-05-06  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/90358
	* tree-vect-stmts.c (get_group_load_store_type): Properly
	detect unused upper half of load.
	(vectorizable_load): Likewise.

	* gcc.target/i386/pr90358.c: New testcase.

From-SVN: r270911

From-SVN: r270910

2019-05-06  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/88828
	* tree-ssa-forwprop.c (get_bit_field_ref_def): Split out from...
	(simplify_vector_constructor): ...here.  Handle constants in
	the constructor.

	* gcc.target/i386/pr88828-0.c: New testcase.

From-SVN: r270908

2019-05-06  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/90328
	* tree-data-ref.h (dr_may_alias_p): Pass in the actual loop nest.
	* tree-data-ref.c (dr_may_alias_p): Check whether the clique
	is valid in the loop nest before using it.
	(initialize_data_dependence_relation): Adjust.
	* graphite-scop-detection.c (build_alias_set): Pass the SCOP enclosing
	loop as loop-nest to dr_may_alias_p.

	* gcc.dg/torture/pr90328.c: New testcase.

From-SVN: r270906

https://gcc.gnu.org/ml/gcc-patches/2019-05/msg00199.html
	libcpp/
	* include/mkdeps.h: Rename struct deps to struct mkdeps.
	* mkdeps.c: Likewise.
	* include/cpplib.h (cpp_get_deps): Rename return type..
	* directives.c (cpp_get_deps): Likewise.
	* internal.h (struct cpp_reader): Rename deps field type.

	gcc/c-family/
	* c-opts.c (handle_defered_opts): Rename struct deps to struc mkdeps.

From-SVN: r270905

2019-05-06  Richard Biener  <rguenther@suse.de>

	* dwarf2out.c (mem_loc_descriptor): Initialize int_mode.

From-SVN: r270903

re PR tree-optimization/90316 (large compile time increase in opt / alias stmt walking for Go example)

2019-05-06  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/90316
	* tree-ssa-alias.c (maybe_skip_until): Pass in target BB,
	compute target on demand.
	(get_continuation_for_phi): Remove code walking stmts to
	get to a target virtual operand which could end up being
	quadratic.

From-SVN: r270902

	libgomp/
	* oacc-parallel.c: Add comments to legacy entry points (GCC 5).

From-SVN: r270901

2019-05-06  Richard Biener  <rguenther@suse.de>

	PR testsuite/90331
	* gcc.dg/pr87314-1.c: Align the substring to open up
	string merging for targets aligning strings to 8 bytes.

From-SVN: r270900

2019-05-06  Martin Liska  <mliska@suse.cz>

	PR sanitizer/90312
	* config/i386/i386-options.c (ix86_option_override_internal): Error only
	when -mabi is selected to a non-default version.
2019-05-06  Martin Liska  <mliska@suse.cz>

	PR sanitizer/90312
	* gcc.dg/asan/pr87930.c: Run the test only on *linux or *gnu
	systems.
	* gcc.dg/tsan/pr88017.c: Likewise.

From-SVN: r270899

2019-05-06  Martin Liska  <mliska@suse.cz>

	* lto-common.c: Update coding style.
	* lto.c (materialize_cgraph): Likewise.

From-SVN: r270898

2019-05-06  Hrishikesh Kulkarni  <hrishikeshparag@gmail.com>
	    Martin Liska  <mliska@suse.cz>

	* Makefile.in: Add lto-dump.texi.
	* cgraph.h: Add new functions get_visibility_string and
	get_symtab_type_string.
	* doc/gcc.texi: Include lto-dump section.
	* doc/lto-dump.texi: New file.
	* dumpfile.c (dump_switch_p_1): Use parse_dump_option.
	(parse_dump_option): Factor out this function.
	* dumpfile.h (enum dump_flag): Add new value TDF_ERROR.
	(parse_dump_option): Export the function.
	* symtab.c (symtab_node::get_visibility_string): New function.
	(symtab_node::get_symtab_type_string): Likewise.
2019-05-06  Hrishikesh Kulkarni  <hrishikeshparag@gmail.com>
	    Martin Liska  <mliska@suse.cz>

	* Make-lang.in: Add lto_dump-related definition.
	* config-lang.in: Likewise.
	* lang.opt: Add new language LTODump and options related
	to LTO dump tool.
	* lto-common.c (lto_read_decls): Support type statistics dump.
	(lto_file_read): Likewise for object files.
	* lto-dump.c: New file.
	* lto-lang.c (lto_option_lang_mask): Move from ..
	* lto.c (lto_option_lang_mask): .. here.
	* lto.h (lto_option_lang_mask): New declaration.

Co-Authored-By: Martin Liska <mliska@suse.cz>

From-SVN: r270897

2019-05-06  Martin Liska  <mliska@suse.cz>
	    Hrishikesh Kulkarni  <hrishikeshparag@gmail.com>

	* Make-lang.in: Add lto-common.o.
	* config-lang.in: Likewise for gtfiles.
	* lto-common.c: New file.
	* lto-common.h: New file.
	* lto-lang.c: Include lto-common.h.
	* lto.c: Move most of the functionality
	into lto-common.c file.

Co-Authored-By: Hrishikesh Kulkarni <hrishikeshparag@gmail.com>

From-SVN: r270896

2019-05-06  Martin Liska  <mliska@suse.cz>

	* config/i386/i386-builtins.c: New file.
	* config/i386/i386-builtins.h: New file.
	* config/i386/i386-expand.c: New file.
	* config/i386/i386-expand.h: New file.
	* config/i386/i386-features.c: New file.
	* config/i386/i386-features.h: New file.
	* config/i386/i386-options.c: New file.
	* config/i386/i386-options.h: New file.
	* config.gcc: Add new files into extra_objs and
	target_gtfiles.
	* config/i386/i386.c: Split content of the file
	into newly introduced files.
	* config/i386/i386.h: Declare common variables
	and macros.
	* config/i386/t-i386: Define dependencies for new files.

From-SVN: r270895

GCC revision 267634 implemented two_value_replacement function.
However, a typo occurred during the parameter check, which caused
us to miss some optimizations.

The intent of the code might be to check that the input parameters
are const int and their difference is one.  However, when I read
the code, I found that it is wrong to detect whether an input data
plus one is equal to itself.  This could be a typo.

2019-05-06  Li Jia He  <helijia@linux.ibm.com>

	* tree-ssa-phiopt.c (two_value_replacement): Fix a typo in parameter
	detection.
	* gcc.dg/tree-ssa/pr37508.c: Add the no-ssa-phiopt option to skip phi
	optimization.
	* gcc.dg/tree-ssa/pr88676-2.c: New testcase.

From-SVN: r270894

printers.py (add_one_template_type_printer): Add type printer for container types in std::__debug namespace.

2019-05-06  François Dumont  <fdumont@gcc.gnu.org>

	* python/libstdcxx/v6/printers.py (add_one_template_type_printer):
	Add type printer for container types in std::__debug namespace.
	* testsuite/lib/gdb-test.exp (whatis-regexp-test): New.
	(gdb-tests): Use distinct parameters for the type of test and use of
	regex.
	(gdb-test): Check for regex test even if 'whatis' test.
	* testsuite/libstdc++-prettyprinters/80276.cc: Adapt for _GLIBCXX_DEBUG
	mode.
	* testsuite/libstdc++-prettyprinters/cxx11.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/cxx17.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/libfundts.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/simple.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/simple11.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/whatis.cc: Likewise.
	* testsuite/libstdc++-prettyprinters/whatis2.cc: Likewise.

From-SVN: r270893

From-SVN: r270892

2019-05-05  Thomas Koenig <tkoenig@gcc.gnu.org>

	PR fortran/90344
	* gfortran.dg/pr90344.f90: New test.

From-SVN: r270882

From-SVN: r270881

        * include/std/system_error (error_category): Fix comment.

From-SVN: r270877

In this implementation it is an error to pass the empty path to absolute,
because the empty path doesn't represent any file in the filesystem so
the function cannot meet its postcondition.

Currently the absolute(const path&, error_code&) overload reports an
error for the empty path, but using errc::no_such_file_or_directory, and
the other overload does not report an error. This patch makes them
consistntly report an errc::invalid_argument error for the empty path.

	PR libstdc++/90299
	* src/c++17/fs_ops.cc (absolute(const path&)): Report an error if the
	argument is an empty path.
	(absolute(const path&, error_code&)): Use invalid_argument as error
	code instead of no_such_file_or_directory.
	* testsuite/27_io/filesystem/operations/absolute.cc: Check handling
	of non-existent paths and empty paths with both overloads of absolute.

From-SVN: r270874

	* include/std/system_error (error_category, error_code)
	(error_condition): Improve docs.
	* libsupc++/exception: Add missing @addtogroup Doxygen command.
	* libsupc++/exception_ptr.h (exception_ptr): Link equality operators
	to class documentation. Suppress documentation for implementation
	details.
	* libsupc++/nested_exception.h (throw_with_nested, rethrow_if_nested):
	Suppress documentation for implementation details.

From-SVN: r270873

The hash value should be based on the identity (i.e. address) of the
error_category member, not its object representation (i.e. underlying
bytes).

	* include/std/system_error (error_code): Remove friend declaration
	for hash<error_code>.
	(hash<error_code>::operator()): Use public member functions to access
	value and category.
	(hash<error_condition>::operator()): Use address of category, not
	its object representation.
	* src/c++11/compatibility-c++0x.cc (hash<error_code>::operator()):
	Use public member functions to access value and category.
	* testsuite/19_diagnostics/error_condition/hash.cc: New test.

From-SVN: r270872

	* crontab: Snapshots from trunk are now GCC 10 related.
	Add GCC 9 snapshots from the respective branch.

From-SVN: r270871

From-SVN: r270870

2019-05-04  Roland Illig  <roland.illig@gmx.de>

	* MAINTAINERS (Write After Approval): Add myself.

From-SVN: r270869

2019-05-04  François Dumont  <fdumont@gcc.gnu.org>

	* include/bits/hashtable.h (_Hashtable<>::rehash): Review comment.
	* include/bits/hashtable_policy.h
	(_Prime_rehash_policy::_M_bkt_for_elements): Use __builtin_ceill.
	(_Power2_rehash_policy::_M_bkt_for_elements): Likewise.
	(_Power2_rehash_policy::_M_next_bkt): Enforce returning a result not
	smaller than input value rather than always greater. Preserve
	_M_next_resize if called with 0 input. Use __builtin_floorl.
	(_Power2_rehash_policy::_M_need_rehash): Rehash only if number of
	elements + number of insertions is greater than _M_next_resize. Start
	with 11 buckets if not told otherwise. Use __builtin_floorl.
	(_Rehash_base<>::reserve): Use rehash policy _M_bkt_for_elements.
	* src/c++11/hashtable_c++0x.cc (_Prime_rehash_policy::_M_next_bkt):
	Preserve _M_next_resize if called with 0 input. Use __builtin_floorl.
	(_Prime_rehash_policy::_M_need_rehash): Start with 11 buckets if not
	told otherwise. Use __builtin_floorl.
	* testsuite/23_containers/unordered_set/hash_policy/71181.cc: Adapt test
	to also validate _Power2_rehash_policy.
	* testsuite/23_containers/unordered_set/hash_policy/power2_rehash.cc:
	Adapt.

From-SVN: r270868

From-SVN: r270867

    
    Recognize
    
            for i := range a { a[i] = zero }
    
    for array or slice a, and rewrite it to call memclr, as the gc
    compiler does.
    
    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/169398

From-SVN: r270862

Use __builtin_copysign{,f,l} when std::copysign isn't available.

	PR libstdc++/61761
	* testsuite/26_numerics/complex/proj.cc: Don't assume <cmath> defines
	std::copysign.

From-SVN: r270859

This is the same fix as was done for std::numeric_limits in r183905.

	PR libstdc++/52119
	* include/ext/numeric_traits.h (__glibcxx_min): Avoid integer
	overflow warning with -Wpedantic -Wsystem-headers.

From-SVN: r270858

    
    The corresponding Go Toolchain patch is CL 164039
    
    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/175079

From-SVN: r270857

Armv6 has support for unaligned accesses to memory.  However, the
thumb1 code patterns were trying to use the 32-bit code constraints.
One failure mode from this was that the patterns are designed to be
compatible with conditional execution and this was then causing an
assert in the compiler.

The unaligned_loadhis pattern is only used for expanding extv, which
in turn is only enabled for systems supporting thumb2.  Given that
there is no simple expansion for a thumb1 sign-extending load (the
instruction has no immediate offset form and requires two registers in
the address) it seems simpler to just disable this for thumb1.

Fixed thusly:

	PR target/89400
	* config/arm/arm.md (unaligned_loadsi): Add variant for thumb1.
	Restrict 'all' variant to 32-bit configurations.
	(unaligned_loadhiu): Likewise.
	(unaligned_storehi): Likewise.
	(unaligned_storesi): Likewise.
	(unaligned_loadhis): Disable when compiling for thumb1.

From-SVN: r270853

2019-05-03  Marc Glisse  <marc.glisse@inria.fr>

	PR tree-optimization/90269
gcc/
	* tree-loop-distribution.c (find_seed_stmts_for_distribution):
	Ignore clobbers.

gcc/testsuite/
	* g++.dg/tree-ssa/ldist-1.C: New file.

From-SVN: r270852

2019-05-03  Martin Liska  <mliska@suse.cz>

	* hash-map.h: Add is_empty function.
	* hash-set.h: Likewise.
	* hash-table.h: Likewise.
	* dwarf2out.c (dwarf2out_finish): Use is_empty instead of
	elements () == 0 (and similar usages).
	* gimple-ssa-store-merging.c (pass_store_merging::terminate_and_process_all_chains): Likewise.
	* gimplify.c (gimplify_bind_expr): Likewise.
	(gimplify_switch_expr): Likewise.
	* hash-map-tests.c (test_map_of_strings_to_int): Likewise.
	* ipa-icf.c (sem_item_optimizer::remove_symtab_node): Likewise.
	* postreload-gcse.c (dump_hash_table): Likewise.
	(gcse_after_reload_main): Likewise.
	* predict.c (combine_predictions_for_bb): Likewise.
	* tree-parloops.c (reduction_phi): Likewise.
	(separate_decls_in_region): Likewise.
	(transform_to_exit_first_loop): Likewise.
	(gen_parallel_loop): Likewise.
	(gather_scalar_reductions): Likewise.
	(try_create_reduction_list): Likewise.
	* var-tracking.c (dump_vars): Likewise.
	(emit_notes_for_changes): Likewise.
	(vt_emit_notes): Likewise.
2019-05-03  Martin Liska  <mliska@suse.cz>

	* call.c (build_aggr_conv): Use is_empty instead of
	elements () == 0 (and similar usages).
	* parser.c (cp_parser_lambda_introducer): Likewise.

From-SVN: r270851

re PR tree-optimization/90316 (large compile time increase in opt / alias stmt walking for Go example)

2019-05-03  Richard Biener  <rguenther@suse.de>

	PR tree-optimization/90316
	* tree-ssa-pre.c (pass_pre::execute): Re-compute DOM fast queries
	before running VN.

From-SVN: r270848